Question

verify the identity
(x+a) (x+b) =x^2+(a+b)x+ab for x =11 , a = 4 ,b = -7​

Answer 1

ANSWER:-

It's one of the identity from the Standard Algebraic Identities list

(x+a) (x+b) =x^2+(a+b)x+a

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Answer 2

Answer:

Step-by-step explanation:

LHS=(x+a)(x+b)

(11+4)(11-7)

15×4

60

LHS =60

RHS=x^2+(a+b)x+ab

(11)^2+(4-7)11×(-7)

121+(-3)11+(-28)

=60

RHS=60

Therefore LHS=RHS

This is your answer

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